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authorJoseph Myers <joseph@codesourcery.com>2015-10-28 13:29:03 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-10-28 13:29:03 +0000
commitc871b9b096e107fe6220e18102f5fb8070b49819 (patch)
tree19328f2044291fec53c6f0ab3d5d8f0f5ffb1386 /sysdeps/x86_64/configure
parent56583289b18a9680e06f6b8b26d05b51e4c39a42 (diff)
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Remove -mavx2 configure tests.
There are configure tests for the -mavx2 compiler option.  AVX2
support was added in GCC 4.7, so these tests are now obsolete; this
patch removes them.

Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch).

	* sysdeps/i386/configure.ac (libc_cv_cc_avx2): Remove configure
	test.
	* sysdeps/i386/configure: Regenerated.
	* sysdeps/x86_64/configure.ac (libc_cv_cc_avx2): Remove configure
	test.
	* sysdeps/x86_64/configure: Regenerated.
	* config.h.in (HAVE_AVX2_SUPPORT): Remove #undef.
	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
	memset-avx2 unconditionally instead of conditionally on
	[$(config-cflags-avx2) = yes].
	* sysdeps/x86_64/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list) [HAVE_AVX2_SUPPORT]: Make code
	unconditional.
	* sysdeps/x86_64/multiarch/memset.S [HAVE_AVX2_SUPPORT]: Likewise.
	* sysdeps/x86_64/multiarch/memset_chk.S
	[IS_IN (libc) && SHARED && HAVE_AVX2_SUPPORT]: Change conditional
	to [IS_IN (libc) && SHARED].
Diffstat (limited to 'sysdeps/x86_64/configure')
-rw-r--r--sysdeps/x86_64/configure26
1 files changed, 0 insertions, 26 deletions
diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure
index 8d4d8b8763..15058e2db3 100644
--- a/sysdeps/x86_64/configure
+++ b/sysdeps/x86_64/configure
@@ -124,32 +124,6 @@ if test $libc_cv_asm_mpx == yes; then
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for AVX2 support" >&5
-$as_echo_n "checking for AVX2 support... " >&6; }
-if ${libc_cv_cc_avx2+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if { ac_try='${CC-cc} -mavx2 -xc /dev/null -S -o /dev/null'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then :
-  libc_cv_cc_avx2=yes
-else
-  libc_cv_cc_avx2=no
-fi
-
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_avx2" >&5
-$as_echo "$libc_cv_cc_avx2" >&6; }
-if test $libc_cv_cc_avx2 = yes; then
-  $as_echo "#define HAVE_AVX2_SUPPORT 1" >>confdefs.h
-
-fi
-config_vars="$config_vars
-config-cflags-avx2 = $libc_cv_cc_avx2"
-
 if test x"$build_mathvec" = xnotset; then
   build_mathvec=yes
 fi